*For the aim of this steerage, fever is outlined as subjective fever (feeling feverish) or a measured temperature of 100.4°F (38°C) or increased. Note that fever could also be intermittent or might not be current in some folks, comparable to those that are aged, immunocompromised, or taking sure fever-reducing drugs (e.g., nonsteroidal anti-inflammatory medication [NSAIDS]).
** Data to tell the definition of shut contact are restricted. Factors to think about when defining shut contact embrace proximity, the period of publicity (e.g., longer publicity time seemingly will increase publicity danger), and whether or not the publicity was to an individual with signs (e.g., coughing seemingly will increase publicity danger). While analysis signifies material face coverings could assist those that are contaminated from spreading the an infection, there’s much less info concerning whether or not material face coverings provide any safety for a contact uncovered to a symptomatic or asymptomatic affected person. Therefore, the willpower of shut contact needs to be made regardless of whether or not the particular person with COVID-19 or the contact was carrying a material face overlaying. Because most people has not acquired coaching on correct choice and use of respiratory PPE, it can’t be sure whether or not respiratory PPE worn throughout contact with a person with COVID-19 an infection protected them from publicity. Therefore, as a conservative strategy, the willpower of shut contact ought to typically be made regardless of whether or not the contact was carrying respiratory PPE, which is really helpful for well being care personnel and different skilled customers, or a material face overlaying really helpful for most people.
***Data are inadequate to exactly outline the period of time that constitutes a protracted publicity. Recommendations fluctuate on the size of time of publicity, however 15 minutes of shut publicity can be utilized as an operational definition. Brief interactions are much less prone to end in transmission; nevertheless, signs and the kind of interplay (e.g., did the contaminated particular person cough immediately into the face of the uncovered particular person) stay essential.
Integration of those definitions and actions into communications and actions of public well being authorities may be guided by CDC’s “Implementation of Mitigation Strategies for Communities with Local COVID-19 Transmissionpdf icon”